Data/hora: 21/06/2024 05:52:09

Biblioteca(s): | Embrapa Agrobiologia; Embrapa Arroz e Feijão.
Data corrente: | 28/09/1994
Data da última atualização: | 27/06/1995
Autoria: | PEREIRA, P. A. A.; BLISS, F. A.
Título: | Nitrogen fixation and plant growth of common bean (Phaseolus vulgaris L.) at different levels of phosphorus availability.
Ano de publicação: | 1987
Fonte/Imprenta: | Plant Soil, v. 104, n. 1, p. 79-84, 1987.

Idioma:

Inglês
Português

Conteúdo: | The efficacy of the alumina system for differentiating between bean (Phaseolus vulgaris L.) genotypes for growth at different levels of phosphorus availability was determinated. In addition to response to P levels, comparisons were made between plants receiving N either from fertilizer or nitrogen fixation. When the cv. Carioca was provided with either 100 ppm of N or inoculated withRhizobium leguminosarum biovarphaseoli, differences in shoot dry weight and nodule number were related to P level. There was a greater proportion of green, ineffectivevs. red, active nodules at the low P concentration than at the higher P concentration. In a second experiment, two cvs., Puebla 152 and Carioca and the breeding line UW 24-21, either were inoculated with rhizobia or provided with 150ppm of N. Each genotype-nitrogen combination was grown at 8 levels of P. There was a positive effect of P level on shoot dry weight, nodule number and nodule mass. Root mass was affected less than nodule or shoot mass by the P level of the growth medium. Nodule mass, but not P concentration in the nodules, was affected by P level, whereas in the other plant tissues, P concentrations were lower at lower P levels in the media.
Palavras-Chave: | FBN.
Thesagro: | Crescimento; Feijão; Fixação de Nitrogênio; Fósforo; Nitrogênio; Nodulação; Phaseolus Vulgaris.

Categoria do assunto:

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F Plantas e Produtos de Origem Vegetal

Registro original: | Embrapa Agrobiologia (CNPAB)

Exemplares:

CNPAF - (5914-1) - UPC - AP - PP - 1987 -  - 1987 - DIS
CNPAB - (21138-1) - ADC - AP - -- -  -  - 19008 - DIS